145789871 has 2 divisors, whose sum is σ = 145789872. Its totient is φ = 145789870.

The previous prime is 145789843. The next prime is 145789883. The reversal of 145789871 is 178987541.

145789871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145789871 - 2¹⁰ = 145788847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145789811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72894935 + 72894936.

It is an arithmetic number, because the mean of its divisors is an integer number (72894936).

Almost surely, 2^145789871 is an apocalyptic number.

145789871 is a deficient number, since it is larger than the sum of its proper divisors (1).

145789871 is an equidigital number, since it uses as much as digits as its factorization.

145789871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 50.

The square root of 145789871 is about 12074.3476428335. The cubic root of 145789871 is about 526.3110043756.

The spelling of 145789871 in words is "one hundred forty-five million, seven hundred eighty-nine thousand, eight hundred seventy-one".